osb/app/Http/Requests/ProductAddEdit.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Gate;

use App\Models\ProviderOauth;

/**
 * Editing Suppliers
 */
class ProductAddEdit extends FormRequest
{
	/**
	 * Determine if the user is authorized to make this request.
	 *
	 * @return bool
	 */
	public function authorize()
	{
		return Gate::allows('wholesaler');
	}

	/**
	 * Get the validation rules that apply to the request.
	 *
	 * @return array<string, mixed>
	 */
	public function rules()
	{
		return [
			'translate.name_short' => 'required|string|min:2|max:100',
			'translate.name_detail' => 'required|string|min:2|max:100',
			'translate.description' => 'required|string|min:2|max:65535',
			'active' => 'sometimes|accepted',
			'model' => 'sometimes|string',			// @todo Check that it is a valid model type
			'model_id' => 'sometimes|int',			// @todo Check that it is a valid model type
			'accounting' => [
				'nullable',
				'array',
				function (string $attribute,mixed $value,\Closure $fail) {
					if (! is_array($value))
						$fail("Invalid format for {$attribute}");

					foreach ($value as $k=>$v) {
						if (! ProviderOauth::where('id',$k)->exists())
							$fail("Provider doesnt exist [$k]");

						// @todo Validate that the value is in the accounting system
					}
				},
			],
			'pricing' => 'required|array',			// @todo Validate the elements in the pricing
		];
	}
}